There's nothing wrong with a TH350, as long as you can figure out how to hook up the kickdown cable. It has a lower 1st gear than a TH400.
Most of the S-10 4x4 rears were either 3.42 or 3.73 gears. Again, those are fine for general purpose driving.
Are you going to leave the motor stock? Tell us a little more about what you plan on doing with the car, and the advice can get a lot more specific.
And welcome to the Inliners site!
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David
newbie #4153
